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    <p>You can use the <a href="http://www.mathworks.com/help/techdoc/ref/what.html" rel="nofollow">WHAT</a> function to discover classes (as well as functions,packages,etc...) in a certain folder, then call <a href="http://www.mathworks.com/help/techdoc/ref/methods.html" rel="nofollow">METHODS</a> to find the signature of the constructor of the class (some parsing needed here), finally using <a href="http://www.mathworks.com/help/techdoc/ref/feval.html" rel="nofollow">FEVAL</a> (passing arguments if any) to create an object from this class.</p> <p>You could also use <a href="http://www.mathworks.com/help/techdoc/ref/meta.class.html" rel="nofollow">meta.class</a> to get all sorts of meta-information about your classes.</p> <hr> <h1>EDIT</h1> <p>Here is some code to illustrate what I had in mind:</p> <pre><code>%# folder containing your classes pathName = fullfile(pwd,'folder'); %# make sure it is on the path p = textscan(path, '%s', 'Delimiter',';'); p=p{1}; if ~any(ismember(p,pathName)) addpath(pathName) end %# list MATLAB files w = what(pathName); %# get class names fNames = cellfun(@(s) s(1:end-2), w.m, 'Uni',false); %# remove .m extension fNames = [fNames ; w.classes]; %# add classes in @-folders %# get classes metadata mt = cellfun(@meta.class.fromName, fNames, 'Uni',false); %# get meta-data mt = mt( ~cellfun(@isempty,mt) ); %# get rid of plain functions %# build object from each class objects = cell(numel(mt),1); for i=1:numel(mt) %# get contructor function ctorMT = findobj(mt{i}.MethodList, 'Access','public', 'Name',mt{i}.Name); %# get number of contructor arguments numArgs = numel(ctorMT.InputNames); %# create list of arguments (using just zeros) args = repmat({0}, [numArgs 1]); %# create object try obj = feval(ctorMT.Name,args{:}); catch ME warning(ME.identifier, ME.message) obj = []; end %# store object objects{i} = obj; end </code></pre> <p>As you can see, I found it easier to simply use <code>meta.class</code> to get metadata about the classes, instead of manually parsing the output of <code>methods('fcn','-full')</code> as I originally suggested.</p> <p>However this is not perfect, as there is no way to find out what type of input each constructor expect (only how many). I opted to always pass <code>0</code> for each argument..</p> <p>To test the implementation above, I create these sample classes (one in a self-contained file, the other defined in @-folder with multiple files):</p> <h3>folder/hello.m</h3> <pre><code>classdef hello properties name = ''; end methods function this = hello() this.name = 'world'; end function val = get.name(obj) val = obj.name; end function obj = set.name(obj,val) obj.name = val; end function say(obj) fprintf('Hello %s!\n',obj.name); end end end </code></pre> <h3>folder/@hello2/hello2.m</h3> <pre><code>classdef hello2 properties name end methods function this = hello2(val) this.name = val; end function val = get.name(obj) val = obj.name; end function obj = set.name(obj,val) obj.name = val; end end methods say(obj) end end </code></pre> <h3>folder/@hello2/say.m</h3> <pre><code>function say(obj) fprintf('Hello2 %s!\n', obj.name); end </code></pre>
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